Pipe-joint.



" H. MORRIS.

PIPE JOINT.

APPLIUATION FILED JAN. 19, 1907.

Witnesses: a I

- nventor PATENTED DEC. 3, 1907'.

. to interfere with the uniform disposition of ,comparatively thin sheetmetal serious dif- -safety, but in p1 e formed of comparatively 7 fromthe following description taken in con- HUGH MORRIS, or MI'DDLETOWN,onIo.

PIPE-JOINT.

Specification of Letters Patent.

Patented Dec. 3, 1907.

1907. Serial no. 363.082.

Application filed January 19- To all whom 'it may concern: 1

Be it known that I, HUGH MORRIS, a citizen of the United States,residing at Middletown, Butler count Ohio, have invented certain new anduse 1 Im rovements in Pi e-Joints, of which the fol owing is a speciicati'on. Y

In certain characters of pipe made from ficulties have presentedthemselves in formin the joints between pipe sections. Con-- si ering athin pipe as a beam supported at each end its fiexure, due to its. ownweight, may be the well known curve indicative of uniform strain. If thepipe contained, say at. mid-point, a joint, it would be desirable thatthe joint be of recisely the same strength as the body of t e pipe inorder not strains. But such a joint is practicall impossible ofproduction and the joint-wil represent either an extra weak or an extrastrong point in the length of the pipe. If it is too weak the curve offiexure becomes distorted and strains become concentrated at the joint.If the joint be too stiff then again the curve of flexure becomesdistorted and extraordinary strains are brought upon the pipeimmediately at each side of the joint and these strains are liable torupture the pipe at or very near the joint. In pipe made of thickmaterial these matters 'may be largely ignored owing to the high factorof thin sheet meta the matter becomes important.

My invention is designed to overcome, as far as practicable, the defectsreferred to and to provide a pi e joint which will be at least as strongas tiie body of the pipe and will not at the same time become an agentof destruction.

The invention Will be readily understood nection with the accompanyingdrawing in which:

Figure 1 is a side elevation of two ipe sections joined upon m improvedcoup ing system: Fig. 2 a vertica longitudinal section of the same: andFig. 3 a transverse vertical section.

In the drawing:1, indicates one of the pipe sections: 2, the other pipesection: 3,

their greatest diameter and exteriorly con-,

cave where the enlargement joins the body of the pipe: 4, the jointbetween the abutting surfaces of the end enlargements of the two pipesections: 5, a band'of sheet metal surrounding the joint but opencircumfererb tially at one point, this band having a cross sectioncorresponding with the enlargements on the ends of the pipe sections sothat the interior of the band wlll fairly hug the curves of the exteriorof the enlargement of the pipe sections, and bring radial pressure withcertainty upon the greatest diameter of the enlargements: 6, cars on thecontiguous ends of the band at the circumferential interruption of theband: and 7, a bolt passing through the ears and serving to draw theends of the band toward each other.

The band need not be very much heavier 'water tightness is desired, thenof course,

luting or packing might be em'p'loyed under the band. The joint has astrength which is entirely satisfactory and in practice is found not tobring destructive strains-upon the pipe at the joint.

I claim The combination of adjoining pipe sections, the abutting ends ofwhich have annular projecting convexly-curved portions of approximatelycircular outline in a lane intersecting the longitudinal axis 0 thepipes, the circular portions mentioned j oincylindricalcircumferentially corrugated sheet metal culverts or sewer pipemade inthe pipehod-ios in concave curvatures of said projecting portion, andalso grips the nim'ging in tho propcting pl'irtlons; a split concavecurved portions to a lesser degree; 10 elmnping hand encircling the pipemembers and means for tightening the clmnping band at the point ofintersection and having an UGH RRIS interior surface so shaped that whenthe MO band is constricted it firmly grips the pro- Witnesses:

jecting portions, the greatest pressure being G. H. CHARLS,

applied to the greatest circumferential part H. STEPHENSON,a

D I SCI-Al M E R 872,442.Hugh Morris, Middletown, Ohio. PDEE JOINT.Patent dated December 3, 1907. Disclaimer filed November 29, 1922, bythe patentee. Hereby enters disclaimer: To the combination of elementsset forth in the claim of said Letters Patent except when and unlesssaid elements are eo-ordinated or used in connection with ofcomparatively thin sheet metal and adapted to be placed in a horizontalposition under the ground for drainage purposes? I 1 [Ofim'al amn'e'mmber 12, 1922.

cylindrical circumferentially corrugated sheet metal culverts or sewerpipemade in the pipehod-ios in concave curvatures of said projectingportion, and also grips the nim'ging in tho propcting pl'irtlons; asplit concave curved portions to a lesser degree; 10 elmnping handencircling the pipe members and means for tightening the clmnping bandat the point of intersection and having an UGH RRIS interior surface soshaped that when the MO band is constricted it firmly grips the pro-Witnesses:

jecting portions, the greatest pressure being G. H. CHARLS,

applied to the greatest circumferential part H. STEPHENSON,a

D I SCI-Al M E R 872,442.Hugh Morris, Middletown, Ohio. PDEE JOINT.Patent dated December 3, 1907. Disclaimer filed November 29, 1922, bythe patentee. Hereby enters disclaimer: To the combination of elementsset forth in the claim of said Letters Patent except when and unlesssaid elements are eo-ordinated or used in connection with ofcomparatively thin sheet metal and adapted to be placed in a horizontalposition under the ground for drainage purposes? I 1 [Ofim'al amn'e'mmber 12, 1922.

DISCLAIMER.

872,442.Hugh Morris, Middletown, Ohio. PIPE JOINT. Patent dated December3, 1907. Disclaimer filed November 29, 1922, by the patentee.

Hereby enters disclaimer:

To the combination of elements set forth inthe claim of said LettersPatent except when and unless said elements are co-ordinated or used inconnection with cylindrical circumferentially corrugated sheet metalculverts or sewer pipemade of comparatively thin sheet metal and adaptedto be placed in a. horizontal position under the ground for drainagepurposes.

0W2 Gazette December 12, 1922.

